Snowplow

Details Snowplow Snowplow

1987-10-29

1989-07-04

Burr, Edgar S.

Excavating

Snow or ice removing or grooming by portable device

Vehicle mount with obstacle responsive trip, or yieldable tool

37231, E01H 506

Patent

active

048437441

ABSTRACT:
A snowplow whose blade is joined means of at least two links disposed one over the other to an implement plate which can be fastened to a vehicle plate of a working vehicle has a system which assures the proper operation of the blade even when it passes over obstacles. This system permits an upper and lower link to be raised over obstacles and to tilt the links due to the fact that the upper link or links are made so as to be able to elongate against the action of a spring force.

REFERENCES:
patent: 2290060 (1942-07-01), Massey
patent: 2877573 (1959-03-01), Kewyon
patent: 2991566 (1961-07-01), Sumner et al.
patent: 3587182 (1971-06-01), Hirt
patent: 3772803 (1973-11-01), Cote
patent: 4074448 (1978-02-01), Niemela

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